Table REF  presents a selection of well-known statistics for these networks. We can observe that the three trade networks (total trade plus the two subsets) share very similar properties; while they are slightly different for the migration case. In particular, while the IMN has a lower connectivity, as indicated by the nodes' average degree and density, its links are more reciprocal, meaning that a bilateral bond is more common than in commercial trades. These results are consistent with the previous literature separately analyzing the two networks [1]}, [2]}.Some of the statistics are quantitatively different from what found in the literature, due to the reduced connectivity resulting from the application of the hypergeometric filter.
